| Fuel type |
Feedstock |
Production process requirements |
D-Code |
| A |
Ethanol |
Corn starch |
All of the following: Dry mill process, using natural gas, biomass, or biogas for process energy and at least two advanced technologies from Table 2 to this section |
6 |
| B |
Ethanol |
Corn starch |
All of the following: Dry mill process, using natural gas, biomass, or biogas for process energy and at least one of the advanced technologies from Table 2 to this section plus drying no more than 65% of the distillers grains with solubles it markets annually |
6 |
| C |
Ethanol |
Corn starch |
All of the following: Dry mill process, using natural gas, biomass, or biogas for process energy and drying no more than 50% of the distillers grains with solubles it markets annually |
6 |
| D |
Ethanol |
Corn starch |
Wet mill process using biomass or biogas for process energy |
6 |
| E |
Ethanol |
Starches from crop residue and annual covercrops |
Fermentation using natural gas, biomass, or biogas for process energy |
6 |
| F |
Biodiesel, renewable diesel, jet fuel and heating oil |
Soy bean oil; Oil from annual covercrops; Oil from algae grown photosynthetically; Biogenic waste oils/fats/greases; Camelina sativa oil; Distillers corn oil; Distillers sorghum oil; Commingled distillers corn oil and sorghum oil |
One of the following: Transesterification with or without esterification pre-treatment, Esterification, or Hydrotreating; excludes processes that co-process renewable biomass and petroleum |
4 |
| G |
Biodiesel, renewable diesel, jet fuel, and heating oil |
Canola/Rapeseed oil |
One of the following: Transesterification using natural gas or biomass for process energy, or Hydrotreating; excludes processes that co-process renewable biomass and petroleum |
4 |
| H |
Biodiesel, renewable diesel, jet fuel, and heating oil |
Soy bean oil; Oil from annual covercrops; Oil from algae grown photosynthetically; Biogenic waste oils/fats/greases; Camelina sativa oil; Distillers corn oil; Distillers sorghum oil; Commingled distillers corn oil and sorghum oil; Canola/Rapeseed oil |
One of the following: Transesterification with or without esterification pre-treatment, Esterification, or Hydrotreating; includes only processes that co-process renewable biomass and petroleum |
5 |
| I |
Naphtha, LPG |
Camelina sativa oil; Distillers sorghum oil; Distillers corn oil; Commingled distillers corn oil and distillers sorghum oil; Canola/Rapeseed oil |
Hydrotreating |
5 |
| J |
Ethanol |
Sugarcane |
Fermentation |
5 |
| K |
Ethanol |
Crop residue, slash, pre-commercial thinnings and tree residue, switchgrass, miscanthus, energy cane, Arundo donax, Pennisetum purpureum, and separated yard waste; biogenic components of separated MSW; cellulosic components of separated food waste; and cellulosic components of annual cover crops |
Any process that converts cellulosic biomass to fuel |
3 |
| L |
Cellulosic diesel, jet fuel and heating oil |
Crop residue, slash, pre-commercial thinnings and tree residue, switchgrass, miscanthus, energy cane, Arundo donax, Pennisetum purpureum, and separated yard waste; biogenic components of separated MSW; cellulosic components of separated food waste; and cellulosic components of annual cover crops |
Any process that converts cellulosic biomass to fuel |
7 |
| M |
Renewable Gasoline and Renewable Gasoline Blendstock; Co-Processed Cellulosic Diesel, Jet Fuel, and Heating Oil |
Crop residue, slash, pre-commercial thinnings, tree residue, and separated yard waste; biogenic components of separated MSW; cellulosic components of separated food waste; and cellulosic components of annual cover crops |
Catalytic Pyrolysis and Upgrading, Gasification and Upgrading, Thermo-Catalytic Hydrodeoxygenation and Upgrading, Direct Biological Conversion, Biological Conversion and Upgrading utilizing natural gas, biogas, and/or biomass as the only process energy sources providing that process used converts cellulosic biomass to fuel; any process utilizing biogas and/or biomass as the only process energy sources which converts cellulosic biomass to fuel |
3 |
| N |
Naphtha |
Switchgrass, miscanthus, energy cane, Arundo donax, and Pennisetum purpureum |
Gasification and upgrading processes that converts cellulosic biomass to fuel |
3 |
| O |
Butanol |
Corn starch |
Fermentation; dry mill using natural gas, biomass, or biogas for process energy |
6 |
| P |
Ethanol, renewable diesel, jet fuel, heating oil, and naphtha |
The non-cellulosic portions of separated food waste and non-cellulosic components of annual cover crops |
Any |
5 |
| Q |
Renewable Compressed Natural Gas, Renewable Liquefied Natural Gas, Renewable Electricity |
Biogas from landfills, municipal wastewater treatment facility digesters, agricultural digesters, and separated MSW digesters; and biogas from the cellulosic components of biomass processed in other waste digesters |
Any |
3 |
| R |
Ethanol |
Grain Sorghum |
Dry mill process using biogas from landfills, waste treatment plants, and/or waste digesters, and/or natural gas, for process energy |
6 |
| S |
Ethanol |
Grain Sorghum |
Dry mill process, using only biogas from landfills, waste treatment plants, and/or waste digesters for process energy and for on-site production of all electricity used at the site other than up to 0.15 kWh of electricity from the grid per gallon of ethanol produced, calculated on a per batch basis |
5 |
| T |
Renewable Compressed Natural Gas, Renewable Liquefied Natural Gas, and Renewable Electricity |
Biogas from waste digesters |
Any |
5 |